I have smokee 3 puffs before 1 month i mean first time in my life?

i have drug test after 20 days for hair test and i smoke 3 to4 puffs before a month i mean first time in my life i smoke that **** before a month but i dont like that **** so for how long it will stay in my hair pls pls pls let me know

I have smokee 3 puffs before 1 month i mean first time in my life?

It stays in your hair for a long time, but such a small quantity is probably undetectable. If it is detected, just explain that you were at a party where others were smoking, and it will be chalked up to secondary smoke.